PHP: Please Haskellize my Page

Have you ever dreamed of a tool that allows you to describe what your app should be, and figures out by itself how to make it? Such approach does exist and is called "declarative programming". In this talk, we will see real-world examples of how Haskell improves the quality of our software and our productivity compared to the last bastion of the Von Neumann languages (PHP), and use it to save thousands of engineering hours while our competitors are struggling with their loops and gotos.